When you have an abundance of summer zucchini, there is no better way to use it than in this Cinnamon Sugar Zucchini Coffee Cake. This recipe transforms a simple garden vegetable into a moist, tender, and incredibly flavorful treat. It features a ribbon of cinnamon sugar running through the center and a crunchy, sweet topping that makes every bite feel like a cozy hug.
This coffee cake is perfect for those who want a sweet breakfast or a light afternoon snack. The zucchini adds moisture without making the cake feel heavy, ensuring a soft crumb that stays fresh for days. It is a crowd-pleaser that even the pickiest eaters will love, as the zucchini melts into the batter, leaving behind only its incredible texture.
Recipe Information
- Prep Time: 20 minutes
- Cook Time: 45 minutes
- Total Time: 65 minutes
- Servings: 12 servings
- Difficulty Level: Easy
Nutrition Information
- Calories per serving: 285 kcal
- Protein: 4g
- Carbohydrates: 42g
- Fat: 12g
- Fiber: 2g
- Sugar: 24g
- Sodium: 215mg
Why Make This Cinnamon Sugar Zucchini Coffee Cake
If you are looking for a way to sneak more vegetables into your family’s diet, this recipe is a total game-changer. The zucchini acts as a natural humectant, which means your cake will be remarkably moist without needing excessive amounts of oil or butter. Combined with the warm, aromatic notes of cinnamon, it creates a flavor profile that is sophisticated yet comforting.
Another reason to love this recipe is its versatility. It works just as well for a fancy Sunday brunch as it does for a quick Tuesday morning breakfast. Plus, it is incredibly easy to whip together with basic pantry staples. You don’t need a fancy mixer or complex techniques to achieve professional-level results in your own kitchen.
How to Make Cinnamon Sugar Zucchini Coffee Cake
Getting this cake into the oven is a simple process that yields impressive results. Just follow these easy steps to create a bakery-style coffee cake right at home.
Ingredients
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1 ½ teaspoons ground cinnamon
- 1/2 cup unsalted butter, melted and slightly cooled
- 3/4 cup granulated sugar
- 1/4 cup light brown sugar, packed
- 1 large egg, room temperature
- 1 teaspoon pure vanilla extract
- 1 ½ cups grated zucchini (about 1-2 medium zucchinis)
- 1/2 cup sour cream or plain Greek yogurt
- For the Cinnamon Filling/Topping: 1/3 cup granulated sugar mixed with 1 tablespoon ground cinnamon
Directions
Step 1: Preparation
Preheat your oven to 350°F (175°C). Grease an 8×8 inch square baking pan with butter or non-stick cooking spray. You can also line it with parchment paper for easier removal. Grate your zucchini using a box grater and lightly pat it with a paper towel to remove excess moisture.
Step 2: Mix Dry Ingredients
In a medium-sized mixing bowl, whisk together the all-purpose flour, baking soda, baking powder, salt, and 1 ½ teaspoons of cinnamon. Set this mixture aside. Ensuring the dry ingredients are well-distributed helps the cake rise evenly.
Step 3: Combine Wet Ingredients
In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Add the egg and vanilla extract, whisking until fully combined. Fold in the grated zucchini and the sour cream until the mixture is uniform.
Step 4: Create the Batter
Gently fold the dry ingredients into the wet ingredients using a spatula. Mix only until no streaks of flour remain. Be careful not to overmix, as this can make the coffee cake tough rather than tender.
Step 5: Layering and Swirling
Spread half of the batter into the prepared baking pan. Sprinkle half of the cinnamon-sugar mixture evenly over the batter. Spread the remaining batter on top, then finish by sprinkling the rest of the cinnamon sugar over the surface.
Step 6: Baking
Bake in the preheated oven for 40 to 45 minutes. You will know it is done when a toothpick inserted into the center comes out clean or with just a few moist crumbs attached. The top should be golden brown and slightly crisp.
Step 7: Cooling
Remove the pan from the oven and place it on a wire rack to cool for at least 15-20 minutes before slicing. This resting time allows the structure of the cake to set, making it easier to cut beautiful squares.
How to Serve Cinnamon Sugar Zucchini Coffee Cake
This coffee cake is best served slightly warm, which highlights the soft texture and aromatic cinnamon. It pairs beautifully with a hot cup of coffee, an herbal tea, or even a cold glass of milk. For an extra touch of decadence, you can serve it with a dollop of whipped cream or a drizzle of simple vanilla glaze made from powdered sugar and a splash of milk.
How to Store Cinnamon Sugar Zucchini Coffee Cake
Store any leftovers in an airtight container at room temperature for up to 3 days. If you live in a very humid environment, you may want to keep it in the refrigerator to maintain freshness. This cake also freezes exceptionally well. Wrap individual slices in plastic wrap and store them in a freezer-safe bag for up to 3 months. Simply thaw at room temperature or warm briefly in the microwave before eating.
Expert Tips for Perfect Cinnamon Sugar Zucchini Coffee Cake
First, do not peel the zucchini! The skin is thin and soft, and it adds lovely little flecks of green and extra nutrients to the cake. Second, when measuring your flour, use the “spoon and level” method. Packing flour into the measuring cup can result in a dry, dense cake. Finally, make sure your egg and sour cream are at room temperature to ensure they emulsify properly with the butter.

Delicious Variations
If you want to add some texture, try mixing 1/2 cup of chopped walnuts or pecans into the batter. For chocolate lovers, a handful of mini chocolate chips folded into the batter is a fantastic addition. You can also swap the sour cream for applesauce if you are looking for a slightly lower-fat option, though the texture will be a bit more dense and muffin-like.
Frequently Asked Questions
Q: Can I taste the zucchini in the finished cake?
No, you won’t taste the zucchini at all. It is there purely for moisture and texture. It takes on the flavor of the cinnamon and sugar perfectly.
Q: Should I squeeze all the water out of the zucchini?
You should lightly pat it with a paper towel, but don’t squeeze it completely dry. The moisture in the zucchini is what makes this coffee cake so tender.
Q: Can I use whole wheat flour instead?
You can replace up to half of the all-purpose flour with whole wheat pastry flour. Using 100% whole wheat flour may result in a heavier, more rustic texture.
Q: Can I make this into muffins?
Absolutely! Divide the batter into a lined muffin tin, layering the cinnamon sugar in the middle of each. Bake at 350°F for about 18-22 minutes.
Q: My cake is sinking in the middle, what happened?
This usually happens if the cake is underbaked or if the baking soda/powder is expired. Make sure to test the center with a toothpick before removing it from the oven.
Conclusion
The Cinnamon Sugar Zucchini Coffee Cake is a wonderful addition to your baking repertoire. It is a fantastic way to enjoy seasonal produce while indulging in a sweet, spiced treat. Whether you are serving it to guests or enjoying a quiet morning at home, this cake is sure to become a repeat favorite. Happy baking!

Cinnamon Sugar Zucchini Coffee Cake
- Total Time: 1 hour 5 minutes
Ingredients
- 2 cups all-purpose flour
- 1 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- 1 ½ teaspoons ground cinnamon
- 1/2 cup unsalted butter, melted and slightly cooled
- 3/4 cup granulated sugar
- 1/4 cup light brown sugar, packed
- 1 large egg, room temperature
- 1 teaspoon pure vanilla extract
- 1 ½ cups grated zucchini (about 1–2 medium zucchinis)
- 1/2 cup sour cream or plain Greek yogurt
- For the Cinnamon Filling/Topping: 1/3 cup granulated sugar mixed with 1 tablespoon ground cinnamon
Instructions
- Preheat your oven to 350°F (175°C). Grease an 8×8 inch square baking pan with butter or non-stick cooking spray. You can also line it with parchment paper for easier removal. Grate your zucchini using a box grater and lightly pat it with a paper towel to remove excess moisture.
- In a medium-sized mixing bowl, whisk together the all-purpose flour, baking soda, baking powder, salt, and 1 ½ teaspoons of cinnamon. Set this mixture aside. Ensuring the dry ingredients are well-distributed helps the cake rise evenly.
- In a large bowl, whisk together the melted butter, granulated sugar, and brown sugar until smooth. Add the egg and vanilla extract, whisking until fully combined. Fold in the grated zucchini and the sour cream until the mixture is uniform.
- Gently fold the dry ingredients into the wet ingredients using a spatula. Mix only until no streaks of flour remain. Be careful not to overmix, as this can make the coffee cake tough rather than tender.
- Spread half of the batter into the prepared baking pan. Sprinkle half of the cinnamon-sugar mixture evenly over the batter. Spread the remaining batter on top, then finish by sprinkling the rest of the cinnamon sugar over the surface.
- Bake in the preheated oven for 40 to 45 minutes. You will know it is done when a toothpick inserted into the center comes out clean or with just a few moist crumbs attached. The top should be golden brown and slightly crisp.
- Remove the pan from the oven and place it on a wire rack to cool for at least 15-20 minutes before slicing. This resting time allows the structure of the cake to set, making it easier to cut beautiful squares.
- Cook Time: 65 minutes
- Diet: Vegetarian




